CWE Directory Reorganization

Rearrange directory structure of CWE to be loosely equivalent to
the H'uru Plasma repository.

Part 1: Movement of directories and files.

Sources/Plasma/PubUtilLib/plSurface/ShaderSrc/ps_CalphaAadd.inl

@@ -0,0 +1,14 @@
+
+ps.1.1
+
+// Alpha blend color, output sum of alphas
+
+// Color is t0 * (1 - t1.a) + t1 * t1.a
+// Alpha is t0.a + t1.a
+
+tex		t0
+tex		t1
+
+lrp		r0.rgb, t1.a, t1, t0
+add		r0.a, t0, t1;
+mul		r0, r0, v0;